Useful life of our turbines?
06-27-2014, 06:46 PM
#1
Senior Member
Thread Starter
My Feedback: (7)
Join Date: Dec 2001
Location: Gig Harbor,
WA
Posts: 524
Likes: 0
Received 0 Likes
on
0 Posts
Useful life of our turbines?
Hello all,
I just got (in trade) a used Wren 54 SuperSport and noticed that it has had a long life… 54hrs on the ecu? Wow!
So that made me think… what is the useful life of our turbines? How long have guys been flying their turbines? This one supposedly has had a recent service from Wren? It appears to be in fine shape, but I have not had a chance to install or start it?
Thanks
Z
I just got (in trade) a used Wren 54 SuperSport and noticed that it has had a long life… 54hrs on the ecu? Wow!
So that made me think… what is the useful life of our turbines? How long have guys been flying their turbines? This one supposedly has had a recent service from Wren? It appears to be in fine shape, but I have not had a chance to install or start it?
Thanks
Z
06-27-2014, 07:59 PM
#3
How many hours do the full scale do before they are retired?
I can't see why the miniature turbines wouldn't last as long for as long as the service and the rite fuel is used.
I defiantly would not look at a turbine with 50 hours as a lot.
To be realistic it seams that anything which is smaller in size does not seem to last as long as a larger version comparing to most mechanical things. So to be realistic I would think 500-1000 hours would be reasonable. Again this is just my 2c worth and happy to read what some turbine builders have to say.
I can't see why the miniature turbines wouldn't last as long for as long as the service and the rite fuel is used.
I defiantly would not look at a turbine with 50 hours as a lot.
To be realistic it seams that anything which is smaller in size does not seem to last as long as a larger version comparing to most mechanical things. So to be realistic I would think 500-1000 hours would be reasonable. Again this is just my 2c worth and happy to read what some turbine builders have to say.
06-27-2014, 08:43 PM
#4
P-80 went approx. 218h 54m, 1465 runs + 90 runs aborted, died in a crash
P-70 went approx. 224h 41m, 1524 runs + 112 runs aborted, retired at Jetcat in 2009
P-70 went approx. 120h 27m, 819 runs + 32 runs aborted, retired at Jetcat in 2007
plus an active P-70 and P-80 both right around 50h.
and a bunch of failed starts and ignition fails.
Keep it maintained and it will last.
P-70 went approx. 224h 41m, 1524 runs + 112 runs aborted, retired at Jetcat in 2009
P-70 went approx. 120h 27m, 819 runs + 32 runs aborted, retired at Jetcat in 2007
plus an active P-70 and P-80 both right around 50h.
and a bunch of failed starts and ignition fails.
Keep it maintained and it will last.
Last edited by Thud_Driver; 06-27-2014 at 08:51 PM.
06-28-2014, 02:21 AM
#9
Join Date: Oct 2006
Location: SAO JOSE DO RIO PRETO-SP, BRAZIL
Posts: 791
Likes: 0
Received 0 Likes
on
0 Posts
Z,
we have an 54SS, 57 run time; i crashed it on boomerang nano, well, shipped to wren dealer in brazil, 2 days later, they call me asking how many time the wren had!! I asked, what you think ?? The anwer : 10 hs ??
amazing engine!!!
jose
we have an 54SS, 57 run time; i crashed it on boomerang nano, well, shipped to wren dealer in brazil, 2 days later, they call me asking how many time the wren had!! I asked, what you think ?? The anwer : 10 hs ??
amazing engine!!!
jose
06-28-2014, 04:58 AM
#10
My Feedback: (7)
The real answer to this question is a matter of heat. The hotter an engine runs at the turbine inlet/exit, the shorter the life span of these critical parts. At least on these small engines. Full scale engines have blown-air cooled turbine vanes and stators to control temps.
My JC Titan (160 newtons) had 25 hours on it and the Exhaust Guide Vanes were cracked and needed replacement. I think the new powerful engines in the new smaller packages are going to highly stress their turbines and EGVs. This WILL reduce lifespan of these parts.
My JC Titan (160 newtons) had 25 hours on it and the Exhaust Guide Vanes were cracked and needed replacement. I think the new powerful engines in the new smaller packages are going to highly stress their turbines and EGVs. This WILL reduce lifespan of these parts.
06-28-2014, 05:32 AM
#11
Join Date: Oct 2006
Location: SAO JOSE DO RIO PRETO-SP, BRAZIL
Posts: 791
Likes: 0
Received 0 Likes
on
0 Posts
Mitchilito,good point!!!
this is true, but, i think some engines that has same size, and, over time, the factories will extracting more power in the same size engine, well, sometime, somewhere, with someone, the account will be charged!!!
The engines has many modifications to input more ;power, but, these artifices has limits!!!! if exceeded these limits, the useful life reduces considerably.
Jose
The engines has many modifications to input more ;power, but, these artifices has limits!!!! if exceeded these limits, the useful life reduces considerably.
Jose
Last edited by josecilurzo; 06-28-2014 at 05:34 AM.
06-28-2014, 08:18 AM
#12
Senior Member
Thread Starter
My Feedback: (7)
Join Date: Dec 2001
Location: Gig Harbor,
WA
Posts: 524
Likes: 0
Received 0 Likes
on
0 Posts
Well, soon as I'm done installing, I'll start and test to see if there are any issues. I doubt there will be as it's a Wren, but I'll be able to tell better then...
Like anything quality made, if you take care of it, it will last..
Z
Like anything quality made, if you take care of it, it will last..
Z
